Custom Puzzles "Next" Button not working

After I hit about 25-30 puzzles, it sometimes happens that I finish a puzzle and I can't hit the -> (Next) button. It's the light green color and not clickable. 

Training (custom) puzzles count towards the daily puzzle limits. With Gold you may be on a version of the plan with a limit of 25 per day.

https://support.chess.com/article/4566-september-1st-plan-changes

I have gold. 

Yes and there is a daily puzzle limit for those members that had gold prior to September 1st, 2022. Memberships that were active before then and remained current kept the old features and pricing. Only new purchases get the new features and also the new pricing.

After I hit about 25-30 puzzles, it sometimes happens that I finish a puzzle and I can't hit the -> (Next) button. It's the light green color and not clickable.